Calibration Fail: Test 7 signal level fail
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Roger that Erik..I also haven't seen actual proof of clones of the Ultra (yet) so for now people can take for granted that their "Ultra" is legit.
Always preferred to use official sales??to have peace of mind, as it goes without saying that popular items often will be cloned, like we have seen with VNAs and the org TinySA - at lower prices that usually go hand in hand with inferior components/performance.
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Re: Setting time is difficult
Yes, looks like time not changed immediately, but at next display touch enough, don't need to switch off and on.
?(- or you can check the time, when You touch the display where the date/time is visible.)
Istvan
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My mistake, assumed it was a basic. no clone of the ultra as far as we know. --
For more info on the tinySA go to https://tinysa.org/wiki/
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Thanks, Eric.? I fully understand.
Dave - W?LEV
On Sat, Oct 28, 2023 at 9:02?AM Erik Kaashoek < erik@...> wrote: Dave,
Sorry, I will not share this info, not even in private communication.
--
For more info on the tinySA go to
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So there are clones of the Ultra variant yet, as I was not familiar that there are identified clones of the Ultra yet, and the prices seem to center around the same ballpark, indicating more or less the same Hugen-backland.
Any indication of what differs componentwise.?
I recall mentioned about screen upgrading from TFT to IPS on the original product-line but that was months back, and the Zeenko store still lists them as TFT,
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Re: Hi Z probe mounting ideas
 A good idea is to place a luminous white LED on the front of the probe, thus, in addition to indicating that it is powered, it illuminates the area where it is applied.
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On Sat, Oct 28, 2023 at 05:37 AM, Ma?l H?rz wrote:
But it's not clearly visible what kind of wire is used to make the
ground connection. It looks solid core, yet still reasonably flexible.
Or is it some tiny braided wire with transparent insulation?
It's a thin solid insulated wire, does not matter that much as the "loop" created by the wire and the sensing tip will pick up unwanted signals anyway ? --
For more info on the tinySA go to https://tinysa.org/wiki/
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Hi,
In this video there is a
ground wire soldered to the TinySA PCB and one to the RF probe ground.
But it's not clearly visible what kind of wire is used to make the
ground connection. It looks solid core, yet still reasonably flexible.
Or is it some tiny braided wire with transparent insulation?
Best regards,
Ma?l H?rz
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Re: Hi Z probe mounting ideas
Nice build!
I seem to remember you posted this picture in another thread as well, but I cannot find it anymore, so maybe it was only this one.
Is there also a view that shows the front, where the probe tip comes out?
Also you said it is a copper tube, but it looks like the end cap is plastic, and the copper tube itself is either painted or covered in something (is that really a heat shrink tube of such a large size)? Is there a higher res picture of this?
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Re: What is the built-in attenuator's continuous power rating?
#specifications
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Re: What is the built-in attenuator's continuous power rating?
#specifications
As long as you stay at 30dB attenuation and an input level below the maximum ratings of the PE4312 (both basic and ultra) you are safe. Make sure you do NOT enable the LNA with +10dBm input --
For more info on the tinySA go to https://tinysa.org/wiki/
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According to the wiki's FAQ, the TinySA BASIC's built-in attenuator is "compatible" with PE4312C-Z. While I found no mention about TinySA ULTRA's built-in attenuator, I read the markings? "4312" on the chip U28 of its board.
According to its datasheet (Fig. 4), the PE4312 is safe to operate with a continuous input power up to +11dBm (1MHz - 4GHz). If the energy is restricted to 50MHz-4GHz it gets even more forgiving: +24dBm.
Finally, my question is: would it be safe to continually input on the TinySA Ultra +10dBm (>>50Mhz) with the built-in attenuator manually set to 31dB? What is the built-in attenuator's continuous power rating?
PS.: I don't intend to operate like that. I just want to know if I will burn my beloved new TinySA Ultra if one day I forget to connect external attenuation. Thanks for the awesomeness.
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Re: Does the built-in internal attenuator also attenuate LO leakage?
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Dave, Sorry, I will not share this info, not even in private communication. --
For more info on the tinySA go to https://tinysa.org/wiki/
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Re: Does the built-in internal attenuator also attenuate LO leakage?
On Sat, Oct 28, 2023 at 01:45 AM, <renan.pelicia.ismart@...> wrote:
Does that leakage/injection also get attenuated when the "built-in internal attenuator" of the TinySA is activated,
Yes,? Example: When set to zero span at 1GHz and internal attenuation set to 0dB there is a -20dBm output of the LO at 1.978GHz. Setting the internal attenuation to 30dB changes the output level to -50dBm ? --
For more info on the tinySA go to https://tinysa.org/wiki/
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Does the built-in internal attenuator also attenuate LO leakage?
According to its wiki, when the TinySA Ultra is in ultra mode, the local oscillator (LO) will leak more into the RF input. In that mode, the TinySA can inject up to -10dBm into the circuit it is measuring.
Does that leakage/injection also get attenuated when the "built-in internal attenuator" of the TinySA is activated, or does it bypass that built-in internal attenuator?
For example, if the built-in internal attenuator is manually set to 31dB, does it mean that the leakage/injection is at most -41dBm?
Thank you!
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The Ultra can do AM modulation with much more interpolation points (up to 128 depending on the modulation frequency) where the Basic uses at most 8 points interpolation --
For more info on the tinySA go to https://tinysa.org/wiki/
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Re: New FW release: USB commands added: menu, text and remark
About the (future) wait command, although I don't find it very useful to use it from USB since programs can use their own wait instructions, I find it very useful in a *.CMD program running from SD_card without computer support ,a wait [n] command that causes the #ultra to wait [n] seconds before reading or executing the next command from the *.CMD file, allowing during this time the #ultra to continue performing its actions, such as making several scans to do CALC maxhold, average..... After this [n] time has elapsed, the following commands in the *.CMD file will be allowed to continue executing.
Toni
?
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Looked at the modulation signal on the SA Ultra on my portable scope.
A lot cleaner than the Ultra's little brother
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Michiyo
Enchilada